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How to enter a Matrix Space (Team) or Room (Channel)

The New Helmholtz Matrix Service and this Documentation Are in a Ramp-up Phase

We plan to offer Helmholtz Matrix from April 2026.

  • Please contact us if you encounter any errors.
  • Helmholtz members are also invited to give us some structured feedback here.
  • From time to time, you may see a red “Offline” notification message. This is because during ramp-up phase of the service, we may need to deploy changes to the server without prior announcement. Don’t reload, your messages will be sent with few seconds delay.
  • If your matrix account is quite new, your new matrix ID will not be findable for anyone, including your own group manager.
  • There are three ways to join your space and/or groups

Public Spaces, and Public / Visible Rooms

Just search for it and join, if …

  • … the space is public,
  • … the room is public
  • … the room is visible to spaces you are a member of.

Private Space or Room

If the space or room is private, …

  • … your moderator/admin should provide you a link and you can “Ask to join”.
    • This works only if you are using the web browser via matrix.helmholtz.cloud, or a correctly configured element client.
    • Find information about invitations here.
  • … you can give your exact (!) matrix ID to your group manager and lit her/him invite you.
    • click on your profile logo at the top left
    • click settings
    • the Username is your correct Matrix ID, e. g. @name-ab3cd:helmholtz.cloud
      • don’t forget the “@” at the beginning

Dictionary

Matrix Mattermost
Space Team
Room
(Gruppe)
Channel
People Member